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Finding the Fourth Proportional to 388,595.96, 582,972.52 and 163,956.96

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Solution

The fourth proportional to 388,595.96, 582,972.52 and 163,956.96 is: 245,968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,595.96 : 582,972.52 = 163,956.96 : x
  2. Step 2: Convert to fraction form
    388,595.96/582,972.52 = 163,956.96/x
  3. Step 3: Cross multiply
    388,595.96x = 582,972.52 × 163,956.96
  4. Step 4: Simplify right side
    388,595.96x = 95,582,402,142.74
  5. Step 5: Solve for x
    x = 95,582,402,142.74/388,595.96
  6. Step 6: Final answer
    x = 245,968.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.